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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 161 · 40 questions
TalentJR

The fast method (Count the places): Forget the points and multiply the whole numbers: 2.5 × 1.4 → 25 × 14 = 350. Count the decimal places in both numbers: 1 + 1 = 2. Put the point that many places from the right: 3.50 — then drop the 0 at the end: 3.5.

NameDateTime takenScore ___ / 40
  1. 1.5.5 × 0.31 =
  2. 2.0.24 × 1.1 =
  3. 3.0.86 × 0.2 =
  4. 4.9.1 × 0.14 =
  5. 5.1.3 × 3.5 =
  6. 6.0.29 × 2.8 =
  7. 7.0.94 × 1.9 =
  8. 8.0.41 × 2.1 =
  9. 9.0.61 × 3.2 =
  10. 10.9.6 × 1.7 =
  11. 11.6.3 × 0.18 =
  12. 12.7.3 × 0.7 =
  13. 13.0.95 × 3.3 =
  14. 14.0.67 × 0.4 =
  15. 15.3.3 × 3.6 =
  16. 16.0.83 × 2.6 =
  17. 17.7.6 × 3.2 =
  18. 18.3.7 × 1.7 =
  19. 19.0.32 × 0.8 =
  20. 20.1.1 × 0.37 =
  21. 21.0.36 × 0.6 =
  22. 22.2.6 × 0.06 =
  23. 23.3.3 × 0.11 =
  24. 24.6.1 × 1.2 =
  25. 25.2.1 × 0.03 =
  26. 26.0.02 × 1.1 =
  27. 27.4.5 × 0.21 =
  28. 28.0.86 × 0.5 =
  29. 29.0.41 × 0.8 =
  30. 30.7.2 × 0.32 =
  31. 31.0.92 × 3.1 =
  32. 32.0.51 × 2.6 =
  33. 33.0.35 × 1.1 =
  34. 34.0.8 × 2.1 =
  35. 35.9.1 × 1.8 =
  36. 36.2.9 × 3.6 =
  37. 37.0.35 × 2.1 =
  38. 38.2.6 × 0.4 =
  39. 39.8.3 × 0.31 =
  40. 40.0.03 × 0.7 =

Answer key

  1. 1.705
  2. 0.264
  3. 0.172
  4. 1.274
  5. 4.55
  6. 0.812
  7. 1.786
  8. 0.861
  9. 1.952
  10. 16.32
  11. 1.134
  12. 5.11
  13. 3.135
  14. 0.268
  15. 11.88
  16. 2.158
  17. 24.32
  18. 6.29
  19. 0.256
  20. 0.407
  21. 0.216
  22. 0.156
  23. 0.363
  24. 7.32
  25. 0.063
  26. 0.022
  27. 0.945
  28. 0.43
  29. 0.328
  30. 2.304
  31. 2.852
  32. 1.326
  33. 0.385
  34. 1.68
  35. 16.38
  36. 10.44
  37. 0.735
  38. 1.04
  39. 2.573
  40. 0.021

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